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Shanghai Sheng Wang Group, Mineral Development, Business Tourism, Real Estate, Hotel Tourism  Powered by www.300.cn  沪ICP备08105623号
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Elongated stone
Labradorite is a neutral plagioclase, pure and plagioclase beautiful color can be gems...
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Graphite
Graphite is one of the most soft minerals, and its use includes the manufacture of pencil cores...
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Test & Analysis
Top instruments, professional team, rich experience, to provide you with analysis and...
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